This little tip was passed on to me by
a friendly IBM hardware engineer many years ago.

When entering a capacity on demand
(CoD) code into a Power system, you can tell how many processors and how much
memory will be activated, just by looking at the code you’ve given by IBM.

For example, the following codes, when
entered for the appropriate Power system, will enable 4 processors (POD) and
64GB of memory (MOD). I can also tell* that once the VET code is entered, this
system will be licensed for PowerVM Enterprise Edition (2C28).